External Canister Filters

External canister filters, otherwise known as external fish tank filters, are perfect for larger aquariums where an increased level of filtration is necessary. These types of filters are extremely popular because they result in a purer filtration, which means less contaminants and toxins being pumped back into the tank. External canister filters generally have room for different kinds of filter media so that the water goes through multiple stages of filtration. The aim is to provide thorough biological, mechanical, and chemical filtration. As external filters, they are also positioned on the outside of your tank, which increases the space inside of your aquarium.

Whether you’re looking for an external filter for your pond, tank, or aquarium, we’re sure to have the right product for you. We stock adjustable external canister filters which are an extremely powerful filter suitable for aquariums up to 500 litres in size.  Our external canister filters with UV steriliser also use ultraviolet light to kill bacteria and harmful microorganisms that pass through. This offers a much more efficient way of filtering your water. 

Ready for a new external canister filter for your aquarium? Browse our range of external canister filters below. When choosing your filter, make sure it can handle the volume of water in your tank. Simply check how many litres of water the filter is designed to work with. You can also enjoy free UK shipping with no minimum order quantity, as well as same-day despatch on orders placed before 4pm. If you have any questions about the different filters, please feel free to contact us for more information.